package com.song.provider.service;

import com.song.provider.pojo.Book;

import java.util.List;

/**
 * @Author 宋伟宁
 * @Date 2024/1/10
 * @Version 1.0
 **/
public interface BookService {

      List<Book> books();

      Book getBookById(Long id);
      Book addBook(Book book);
      boolean modifyBook(Book book);
      boolean deleteBookById(Long id);
}
